Rotary brush.



G. L FRIEDEY.

ROTARY BRUSH.

APPLICATION FILED MAY 13, 1910 Patented Dec. 27, 1910.

51 n ugptoz I. o O e CHARLES Il- FRIEDEY, F CLEVELAND, OHIO.

ROTARY BRUSH.

Specification of Letters Patent.

Patented Dec. 27, 1910.

Application filed May 13, 1910. Serial No. 561,076.

To all whom 'it may concern:

Be it known that I, CHARLES L. FRIEDEY, a citizen of the United States,residing at Cleveland,in the county of Cuyahoga and State of Ohio, haveinvented new and useful Improvements in Rotary Brushes, of which thefollowing is a specification.

' terminal portion 0 This invention relates to a circular brush of thattype including wire bristles.

The inventlon has for one of its objects .to improve the construction ofbrushes of this character so as to be comparatively simple andinexpensive to manufacture, reliable and efficient in use and of durableand substantial design.

Another object of the invention is the provision of a brush of that typein which the bristles are fastened on a spiral base of twisted wire, thesaid base being clamped in a novel manner to the hub of the wheel.

A still further object of the invention is the provision of a novel hubstructure to Which the bristles are clamped in such a manner as toprevent slipping of the body of the brush on the hub.

\Vith these objects in view, and others as will appear as thedescription proceeds, the invention comprises thevarious features ofconstruction and arrangement of parts which will be more fully describedhereinafter and set forth with particularity in the claims appendedthereto.

In the accompanying drawing, which illustrates one embodiment of theinvention:Figure 1 is a side elevation of the brush with a portion ofthe hub broken away. Fig. 2 is a central section of the brush. Fig. 3 isa perspective view of one 'of-the clamping members or sections of thehub. Fig. 4 is a erspective view of the t the bristle element.

Similar reference characters are employed to designate correspondingparts throughout.

Referring to the drawing, A designates the hub or body of the brushwhich carries radial bristles 1, and the hub has a central opening 2 forreceiving a shaft to which the brush is secured for rotation therewith.

The bristle element consists of a spirally w'ound base B that is made oftWo twisted Wires 3 and to this base are secured the bristles 1 that areformed of double wires, and these bristles are anchored on therbasebybeing held between twisted wires hat constitute the latter. Theconvolutions of the base are of the same diameter and they encircle thehub which clamps the convolutions together side by side. The outerextremities of the base are free from bristles and are bent outwardlyinto radial fingers vor members 4 to serve a particular purpose to beshortly described.

The hub A consists of two clamping members 5 and 6 in the form of disks,the disk 5 has a smooth central opening 7 through which extends a hollowbolt 8 that is pro-' vided at-one end with a hexagonal head 9 and isthreaded at the opposite end. On this threaded end is screwed the member6, the said member having a threaded opening 10 and is also providedwith a hexagonal hub portion 11, so that a Wrench can be applied to thatsection of the hub, while another wrench engages the hexagonal head ofthe bolt 8. The members 5 and (3 have peripheral flanges 12 betweenwhich the convolutions of the bristle element are clamped, and on theinner face of each flange is an arcuate abutment or stop 13 whichengages the radial member 4 of the bristle element so that it isimpossible to slip around on the hub.

From the foregoing description taken in connection with the accompanyingdrawing, the advantages of the construction anc of the method ofoperation will be readily apparent to those skilled in the art to whichthe invention relates, and while I have described the principle ofoperation of the invention, together with the device which I nowconsider to be the best embodiment thereof, I desire to have itunderstood that the device shown is merely illustrative and that suchchanges may be made when desired as are within the scope of the claims.

\Vhat I claim as new and desire to secure member, a removable v bristleelement centrally between the sections, a member on'the ends of theelement engagin 'the said abutments to prevent slipping o? the bristleelement on the hub.

2. A brush comprising a two part h ub each part having a flange androvlded with an abutment on the flange, an a removable bristle elementclamped between the flanges and including a bristle carrying base havingits extremities formed into outwardly extending members arranged toengage said abutments to prevent turning of the element on the hub.

3. A brush comprising a hub composed of flanged members, a bolt passingthrough one of the members and threaded on the other member, arcuatewebs on the inner faces of the flanges to form abutments, and a brushelement removably clamped between the flanges and prevented fromrotating on the hub by the said webs.

4. A brush comprising a hub composed of separable sections clampedtogether, an areuate web on each section, a bristle element including aspirally wound base and bristles thereon, the'extremities of the basebeing 15 free from bristles and bent outwardly in a radial direction toengage the ends of said Webs.

In testimon whereof I aflix my signature in presence 0 two witnesses.

CHARLES L. FRIEDEY." Witnesses: i I

WM. FRIEDEY, FRANK. F. FRIEDEY.

